Safety razor



Dec. 27, 1932. Y T. c. sHEl-:HAN

SAFETY RAZOR FiledMaroh 3. 1931 y WM @n r 77 A RNEY Patented Dec. 27, 1932 UNITED STATES PATENT OFFICE THOMAS C. SHEEHAN, OF UPPER MONTCLAIR, NEVJ JERSEY, ASSIGNOR TO DURHAIVD DUPLEX RAZOR COMPANY, A CORPORATION 0F NEW YORK SAFETY RAZOR Application filed March 3,

This invention relates to an improved safety razor of the type in which the guard which engages one side of the blade is provided With blade abutments, its main object being to provide improved means for locking the blade and guard together and means for simultaneously aligning the cutting edge of the blade against said abutments.

In safety razors of this type it is highly desirable that the blade be accurately aligned with the blade abutments to place the cutting edge in proper position for shaving. By providing means for aligning the blade While it is being locked to the guard, the cutting edge is placed in the proper position from which it cannot be displaced without unloclring' the guard. With this and other objects not specifically mentioned in view the invention consists in certain constructions and combinations which will be hereinafter fully described and then specilically set forth in the claims hereunto appended.

In the accompanying drawing which forms a part of this specilication and in which like characters of reference indicate the same or like parts:

Fig. 1 is a side elevation of the improved safety razor;

Fig. 2 is a top vie-w of the same;

Fig. 3 is a bottom view of the razor with the clamp plate removed but with the razor blade in locked position;

Fig. 4 is a bottom view similar to Fig. 3, but with the razor blade in unlocked position;

Fig. 5 is a sectional side elevation of the assembled razor, taken on line 5-5 of Fig. 2;

Fig. 6 is a lengthwise section through the assembled razor, taken on line 6 6 of Fig. 1;

Fig. 7 is a side elevation of the razor clamp plate assembled with the blade;

Fig. 8 is a top view of the same; and

Fig. 9 is a plan view of the razor blade.

In carrying the invention into effect, there is provided aslotted blade, a clamp engaging one side of the blade, a guard having blade abutments and engaging the other side of the blade, a locking member for locking said blade between said clamp and guard, said member including a yielding cam for 1931. Serial N0. 519,809.

engaging the slot in the blade for aligning its cutting edge against said abutments. In the best constructions contemplated the clamp is provided with headed pins projecting through the slot in the blade, and th-e locking A rotated from locking position, and said lock! ing member is provided with angularly disposed handle sockets to enable the razor to be used'like an ordinary safety razor or like a straight razor. In the preferred form ofh construction, the yielding cam and the disk 65 and handle sockets are rigidly connected to gether, and the cam is split axially to permit the portion of the same which engages the slot in the blade to yield when its cut-ting..- edge engages th-e abutments. whereby to pre? rent injury to the cutting edge.

Referring to the drawing, the slotted razor blade 1 of well known construction has aguard 2 engaging one side of the blade and a clamp 3 engaging its other side. guard 2 is provided with suitable studs which loosely engage the ends of the slot in the blade and .tit openings provided in the clamp 3. There is rotatably mounted in the guard..v 3 a. locking member comprising a disc dviitted into a recess in the inner side of the guard and having diametrically oppor ite recesses 5 which may be moved into registry7 with openings 6 in the guard 2. Thdclamn 3 is pro-f vided with headed pins 7' which proiect through the blade with their heads entering the perforations 6 so that the under side oif the heads may be engaged by the disc 4 to lock the blade between guard 2 and clamp` 3. 90

When the recesses 5 of tie disc are moved into registry with the openings 6 in the guard the pins 7 of the clamp 6 may be withdrawn therefrom and the blade removed.

The locking member also includes a yield 95 provided with a head having a cam portionI 10 Which is adapted to engage one edge of the blade slot to align one of its cutting edges with the abutments 11 on one edge of the guard 3. To prevent injury to the cutting edge While it is being aligned with the abutyments, the cam 8 is split axially to permit the cam portion l0 to yield, when the cutting edge engages the abutments.

The head 9 is provided *ith two threaded lhandle sockets l2 which are adapted to receive the threaded portion of the handle'l, and are angularly disposed with respect to each other to permit the razor to be used like an ordinary safety razor or like a straight razor.

lll/*hen the handle is moved to engage the disc l ivith the headed pins 6 the blade l locked between the guard f2 and clamp 3, simultaneously aligning one of its cutting edges with the abutments ll on one edge of the guard. To remove the blade the disc l is fractienally rotated through an angle of degrees by movingl the iandle so that the recesses 5 in the dise register with the openings G in the guard, thereby permitting the clamp and blade to beremoved.

In view of the foregoing description of the device it ivill be observed that the raz/,or blade is lool-ted between the clamp and guard by a quarter turn of the locking member, thereby obtaining an appreciable'saving of time as compared with known devices yel this type.

What is claimed is:

l. A safety razor comprising a blade, a guard engaging` one side of said blade and having blade abutments, mechanism including a rotatable member for locking said blade and said guard together, and a yielding cam actuated by said member and engaging said blade to move it transversely and align its cutting edge against said abutments.

2. A safety razor comprising a perforated guard having blade abutments a head rotatably mounted on said guard, a handle threaded into said head, a slotted blade, a clamp adapted to clamp said blade to vsaid guard, headed pins on .said clamp projecting through the slot of said blade into the perforations of said `guard, a dise fixed to said head and having diametrically opposite recesses to permit the passage of the heads of said pins, and a yieldable cam fixed on said head and adapted to engage one edge of the slot in said blade whereby fractional rotation of said head by means of said handle will cause said dise to lock the pins on said clamp in the perforations in said guard and simultaneously align one edge of the blade against said abutments.V

3. A safety razor comprising a blade having a cutting edge on each longitudinal edge,

a guard engaging one side of said blade and having set or" blade abutments adj aeent each cutting edgeof the blade, mechanism for locking said blade and said guard together,

and a yieldable device actuated by said mechanism for moving the Whole blade transversely toward either set of abutments to align either cutting edge of said blade against said 70 abutments.

l. A safety razor comprising an apertured blade having a cutting edge on each longitudinal edge, a clamp engaging one side of said blade, locking means carried by said clampv andV projecting through said blade and having a set of blade abutments adjacent each cutting edge of the blade, a guard engaging the opposite side of said blade, a locking member rotatable in said guard and engaging said means and releasable therefrom when fractionally rotated, and a'device operated by said member for moving the Whole blade transversely toward either set of abutments to align either cutting edge of said blade against said abutments.

5. A safety razor comprising an apertured blade, clamp engaging one side of said blade, locking means carried by said clamp and projecting through said blade, a guard engaging the opposite side of said blade, a-V locking member rotatable in said guard and engaging said means and releasable therefrom when fractionally rotated, and a yielding cam actuated by said member for moving the blade transversely to align the cutting edge of said blade.

In testimony whereof, l have signed my name to this specification.

THOMAS C. SHEEHAN. 

